20446130 has 16 divisors (see below), whose sum is σ = 36855000. Its totient is φ = 8166912.

The previous prime is 20446123. The next prime is 20446133. The reversal of 20446130 is 3164402.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9628609 + 10817521 = 3103^2 + 3289^2 .

It is not an unprimeable number, because it can be changed into a prime (20446133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11672 + ... + 13308.

Almost surely, 2^20446130 is an apocalyptic number.

20446130 is a deficient number, since it is larger than the sum of its proper divisors (16408870).

20446130 is a wasteful number, since it uses less digits than its factorization.

20446130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2893.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20446130 is about 4521.7397094481. The cubic root of 20446130 is about 273.4452430243.

The spelling of 20446130 in words is "twenty million, four hundred forty-six thousand, one hundred thirty".